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Transfixing sounds other than binaural drum beats specifically random short wave numbers reading

You mention in today’s podcast concerning the science of happiness that you listen to binaural drum beats for relaxation and contentment. Have you ever listened to random shortwave radio continuous transmission of numbers? Obviously a lot of Cold War and other context, but the sound and cadence is transfixing.

Could yerba mate coupled with alcohol and smoking have negative side effects?

Hello!, I was thinking about using Yerba mate as my primary source of caffeine, but I read that alcohol consumption and smoking coupled with Yerba mate can have have negative side effects. I am sorry if you have already covered this topic and I missed it, but I have been really confused about this subject by reading articles online. What is your opinion on this ? I am a college student so cutting off alcohol etc. is really difficult.

Caffeinated drinks and testosterone

Hello!, Really glad to support your work. I have read that coffe can boost testosterone, whereas tea can lower it. Is it true that caffeinated drinks can affect testosterone and if so what is the optimal option?

Gut Health: Fermented foods, Prebiotic Fiber supplementation

1. Thank you for the fantastic podcast. I have improved many things in my life because of it. You have mentioned consuming fermented foods on several episodes, but Layne Norton seemed to point to prebiotic dietary fiber as the best and perhaps only evidence-based tool for microbiome improvement. Is there any science that suggests kimchi, yogurt, etc., actually improves the flora? 2. For someone whose diet does not include enough fiber, what would be the best fiber supplement specifically for microbiome health? Psyllium seems to have a lot of positive benefits, but I read it's resistant to fermentation.

Glad to become a Lifetime Member

Very Happy to join the premium subscription to Huberman Lab. Thank You Andrew for creating such a wonderful community for science. Edward and Monica